I could intensify you could intensify she could intensify we could intensify you could intensify they could intensify
V-ing form
I could be intensifying you could be intensifying she could be intensifying we could be intensifying you could be intensifying they could be intensifying
Perfect
I could have intensified you could have intensified she could have intensified we could have intensified you could have intensified they could have intensified
V-ing perfect
I could have been intensifying you could have been intensifying she could have been intensifying we could have been intensifying you could have been intensifying they could have been intensifying
Negation
Simple form
I could not intensify you could not intensify she could not intensify we could not intensify you could not intensify they could not intensify
V-ing form
I could not be intensifying you could not be intensifying she could not be intensifying we could not be intensifying you could not be intensifying they could not be intensifying
Perfect
I could not have intensified you could not have intensified she could not have intensified we could not have intensified you could not have intensified they could not have intensified
V-ing perfect
I could not have been intensifying you could not have been intensifying she could not have been intensifying we could not have been intensifying you could not have been intensifying they could not have been intensifying
Interrogative form
Simple form
could I intensify? could you intensify? could she intensify? could we intensify? could you intensify? could they intensify?
V-ing form
could I be intensifying? could you be intensifying? could she be intensifying? could we be intensifying? could you be intensifying? could they be intensifying?
Perfect
could I have intensified? could you have intensified? could she have intensified? could we have intensified? could you have intensified? could they have intensified?
V-ing perfect
could I have been intensifying? could you have been intensifying? could she have been intensifying? could we have been intensifying? could you have been intensifying? could they have been intensifying?
Interro-negative form
Simple form
could I not intensify? could you not intensify? could she not intensify? could we not intensify? could you not intensify? could they not intensify?
V-ing form
could I not be intensifying? could you not be intensifying? could she not be intensifying? could we not be intensifying? could you not be intensifying? could they not be intensifying?
Perfect
could I not have intensified? could you not have intensified? could she not have intensified? could we not have intensified? could you not have intensified? could they not have intensified?
V-ing perfect
could I not have been intensifying? could you not have been intensifying? could she not have been intensifying? could we not have been intensifying? could you not have been intensifying? could they not have been intensifying?